Four geographic realms are recognized; however some species might
utilize/inhabit more than one realm. For example, many species of
amphibians exist in the terrestrial and freshwater realms. Similarly,
anadromous fish utilize freshwater and marine realms at different stages
of their lives. Please select all realms that would apply to your
species within the assessment country.
Within each of the four realms, species might occur in one or more major
habitat types. The ones listed below are taken from theIUCN
Habitat Classification Scheme. If a species has been assessed for
IUCN’s Red List, all related habitat types will be listed in the Habitat
and Ecology section of the report. For a detailed explanation on each
habitat type and the sub-types within them, please consult the link
above. For species that have not been Red Listed, please try to select
the closest match for your species following the Habitat Classification
Scheme.